纯css实现close

.close{position: relative;display: inline-block; 0.14rem;height: 0.14rem;overflow: hidden;}
.close::before{-webkit-transform: rotate(45deg);transform: rotate(45deg);}
.close::before, .close::after {content: ''; position: absolute; height: 0.01rem; 100%;top: 50%;left: 0;margin-top: 0.01rem; background: #ff6c00;}
.close::after{-webkit-transform: rotate(-45deg);transform: rotate(-45deg);}